<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../react18/react.development.js"></script>
  <script src="../react18/react-dom.development.js"></script>
  <script src="../react18/babel.min.js"></script>
  <script src="../react18/prop-types.js"></script>
</head>

<body>
  <div id="app"></div>
  <script type="text/babel">
  
  /* // 通过ref方式收集表单数据
  class App extends React.Component{
        render(){
          return (
            <div>
              姓名: <input type="text" ref={c => this.nameEle = c}/>
              <br/>
              年龄: <input type="text" ref={c => this.ageEle = c}/>
              <br/>
              爱好: <input type="text" ref={c => this.hobbyEle = c}/>  
              <br/>
              <button onClick={this.handle}>提交</button>  
            </div>
          )
        }

        handle = () => {
          const name = this.nameEle.value;
          const age = this.ageEle.value;
          const hobby = this.hobbyEle.value;

          console.log(name,age,hobby);
        }
    }

    const root = ReactDOM.createRoot(document.getElementById('app'));
    root.render(<App/>) */


    class App extends React.Component{
      render(){
        return(
          <div>
            <input type="text" ref = { c => this.nameEle = c}/>
            <br/>
            <input type="text" ref = { c => this.ageEle = c}/>
            <br/>
            <input type="text" ref = { c => this.sexEle = c}/>
            <br/>
            <button onClick = {this.getFromData}>提交</button>
          </div>
        )
      }

      getFromData = () =>{
        // console.log(this.nameEle);
        const name = this.nameEle.value
        const age = this.ageEle.value
        const sex = this.sexEle.value

        console.log(name,age,sex);
      }

    }

    const root = ReactDOM.createRoot(document.getElementById('app'))
    root.render(<App/>)

  </script>
</body>

</html>